千家坪林区珙桐枝条高压繁殖培育技术  

Air Layering Propagation of Davidia involucrata Baill Trees in Qianjiaping Forest District

作　　者：凌受松 余忠诚 李东林 彭天兵 王贤山 刘平 LING Shou-song;YU Zhong-cheng;LI Dong-lin;PENG Tian-bing;WANG Xian-shan;LIU Ping(Qianjiaping Forest Farm,Pingli,Shaanxi 725504;Shaanxi Hualongshan National Nature Reserve Administration,Zhenping,Shaanxi 725600)

机构地区：[1]平利县千家坪林场,陕西平利725504 [2]陕西化龙山国家级自然保护区管理局,陕西镇坪725600

出　　处：《陕西林业科技》2023年第3期128-129,132,共3页Shaanxi Forest Science and Technology

摘　　要：本文是在平利县千家坪林场“国家珙桐良种基地”进行珙桐育苗实践经验基础上,总结出了珙桐枝条高压繁殖技术要点,包括目标压枝选取,机械环剥处理,压包营养基质,小气候控制,截枝定植,苗期水肥管理等。对比珙桐有性繁殖方法,其繁殖速度快,成活率高,一是减少了珙桐新生植株的生长时间;二是可以很好地保持母本特性。珙桐枝条高压繁殖生根率可达97%,植株成活率达95%,经济成本节约20%。Based on the practical experience of Davidia tree cultivation in Qianjiaping Forest Farm,Pingli County,the key technology of air-layering propagation was summarized,including target branch selection,mechanical ring stripping,nutrient matrix,microclimate control,severing and planting,and water and fertilizer management at seedling stage.Compared with the sexual reproduction,the survival rate is higher,new plant growth time is reduced and the maternal attributes can be guaranteed.The rooting rate of plants can reached 97%and the survival rate reached 95%,with economic cost reduced by 20%.

关 键 词：珙桐 高压枝条繁殖 技术要点 

分 类 号：S792.990.5[农业科学—林木遗传育种]